import { NextResponse } from "next/server"

/**
 * 获取用户收藏列表
 *
 * @route GET /api/user/favorites
 * @param {string} type - 收藏类型，可选值：songs, albums, playlists, artists
 * @param {number} page - 页码，默认为1
 * @param {number} limit - 每页数量，默认为20
 *
 * @returns {Object} 返回用户收藏列表
 *
 * 请求示例:
 * GET /api/user/favorites?type=songs&page=1&limit=20
 * Authorization: Bearer <token>
 *
 * 返回示例:
 * {
 *   "success": true,
 *   "data": [
 *     { "id": "1", "name": "晴天", "artist": "周杰伦", "album": "叶惠美" },
 *     // ... 更多收藏的歌曲
 *   ],
 *   "pagination": {
 *     "currentPage": 1,
 *     "totalPages": 5,
 *     "totalItems": 100
 *   }
 * }
 */
export async function GET(request: Request) {
  const { searchParams } = new URL(request.url)
  const type = searchParams.get("type") || "songs"
  const page = Number(searchParams.get("page") || "1")
  const limit = Number(searchParams.get("limit") || "20")
  const userId = searchParams.get("userId")

  // 如果没有提供userId，则尝试从Authorization头部获取
  // 这里只是示例，实际实现取决于您的认证机制
  if (!userId) {
    // 从Authorization头部获取userId的逻辑
    // ...
  }

  // 确保有userId后再查询数据
  if (!userId) {
    return new Response(JSON.stringify({ error: "User ID is required" }), {
      status: 400,
      headers: { "Content-Type": "application/json" },
    })
  }

  // 使用userId查询用户的收藏列表
  // 实现获取用户收藏列表逻辑
  return new Response(
    JSON.stringify({
      success: true,
      data: [
        { id: "1", name: "晴天", artist: "周杰伦", album: "叶惠美" },
        // ... 更多收藏的歌曲
      ],
      pagination: {
        currentPage: page,
        totalPages: 5,
        totalItems: 100,
      },
    }),
    {
      status: 200,
      headers: { "Content-Type": "application/json" },
    },
  )
}

// Add song to favorites
export async function POST(request: Request) {
  try {
    const { songId } = await request.json()

    // Here you would typically:
    // 1. Verify the user is authenticated
    // 2. Add the song to the user's favorites in your database

    return NextResponse.json({ success: true })
  } catch (error) {
    return NextResponse.json({ error: "Failed to add to favorites" }, { status: 500 })
  }
}

// Remove song from favorites
export async function DELETE(request: Request) {
  try {
    const { songId } = await request.json()

    // Here you would typically:
    // 1. Verify the user is authenticated
    // 2. Remove the song from the user's favorites in your database

    return NextResponse.json({ success: true })
  } catch (error) {
    return NextResponse.json({ error: "Failed to remove from favorites" }, { status: 500 })
  }
}

